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Articles 1 - 30 of 53
Full-Text Articles in Life Sciences
P-Protein Structure In Functional And Non-Functional Secondary Phloem In Armeniaca Vulgaris Lam. (Rosaceae), Gönül Algan, H. Nurhan Bakar Büyükkartal
P-Protein Structure In Functional And Non-Functional Secondary Phloem In Armeniaca Vulgaris Lam. (Rosaceae), Gönül Algan, H. Nurhan Bakar Büyükkartal
Turkish Journal of Botany
P-proteins (phloem proteins) and their conformational changes in the functional and non-functional sieve elements in secondary phloem of Armeniaca vulgaris Lam. (Rosaceae) were examined with an electron microscope. Scattered throughout the cell, the fibrillar components of p-protein in active sieve elements were much denser sieve plate surfaces. P-proteins in inactive sieve elements, different from those of active ones, were observed to appear as disordered, short, thread-like fibrils with fern-like crystalline structure.
Influence Of The Inorganic Carbon Addition On Photosynthesis Of Algae And Some Macrophytes, Meri̇ç Albay, Jan Pokorny
Influence Of The Inorganic Carbon Addition On Photosynthesis Of Algae And Some Macrophytes, Meri̇ç Albay, Jan Pokorny
Turkish Journal of Botany
A two-step experiment was conducted in order to understand whether natural algal communities (fish-pond water) and selected macrophytes (Potamogeton pectinatus L. Elodea nuttallii (Planch.). St.John. and Utricularia L. sp.) + algae were limited by lack of inorganic carbon (IC). First, 0.6 ml 1 M KHCO_3- was added to the water of Vajgar and Ratmirovsky ponds, South Bohemia, and incubated for 180 minutes under 125 µE m^{-2} s^{-1} light. Then light intensity was increased to 150 µE m^{-2} s^{-1} and 0.6 ml 1 M KHCO_3- was added to selected macrophytes + Vajgar pond waters and incubated for 50 and 180 minutes. …
Establishment Of Cell Suspension Cultures And Plant Regeneration In Sugar Beet (Beta Vulgaris L.), Songül Gürel, Ekrem Gürel, Zeki̇ Kaya
Establishment Of Cell Suspension Cultures And Plant Regeneration In Sugar Beet (Beta Vulgaris L.), Songül Gürel, Ekrem Gürel, Zeki̇ Kaya
Turkish Journal of Botany
The establishment of cell suspension culture from the callus of sugar beet (Beta vulgaris L.) breeding lines and plant regeneration from suspension-derived callus are described in this study. Using different concentrations and combinations of BAP and 2,4-D, the growth patterns of cell suspension cultures were examined during a range of culture periods (0, 3, 5, 7, 9, 11, 13 and 15 days). In all lines, the growth rates of cells were initially slow but as the culture proceeded, they increased significantly and accumulated great amounts of biomass over a period of 15 days. Medium containing high BAP (0.25 mg/l) and …
The Moss Flora Of Ankara - Kızılcahamam - Çamkoru And Çamlıdere Districts, Barboros Çeti̇n, Egemen Unç, Güray Uyar
The Moss Flora Of Ankara - Kızılcahamam - Çamkoru And Çamlıdere Districts, Barboros Çeti̇n, Egemen Unç, Güray Uyar
Turkish Journal of Botany
In this study carried out in Ankara-Kızılcahamam Çamlıdere and Çamkoru districts, 82 taxa were identified by the authors. These belong to 20 families and 42 genera of bryophytes. of these, 10 taxa are new for the A2 grid-square adopted by Henderson.
Effect Of Indole-3-Butyric Acid On In Vitro Root Development In Lentil (Lens Culinaris Medik.), Khalid Mahmood Khawar, Sebahatti̇n Özcan
Effect Of Indole-3-Butyric Acid On In Vitro Root Development In Lentil (Lens Culinaris Medik.), Khalid Mahmood Khawar, Sebahatti̇n Özcan
Turkish Journal of Botany
Lentil is an important crop of the family Leguminosae and is notoriously recalcitrant to rooting in vitro. Shoots of cultivar \"Ali Dayı\" of lentil obtained after culturing seeds for 10 days on MS medium were isolated and rooted on MS medium containing indole-3-butyric acid (IBA) at concentrations of 0.25, 0.5, 1.0 and 2.0 mg/l. The primary response was obtained after 4 weeks; 0.25 mg/l IBA gave the best results, with a rooting percentage of 25%, mean number of 7.87 roots along with mean root length of 7.13 cm. However, all other concentrations of IBA failed to induce roots.
A Note On Cheilothela Chloropus (Brid.) Lindb. (Ditrichaceae, Musci) In Turkey, Adnan Erdağ
A Note On Cheilothela Chloropus (Brid.) Lindb. (Ditrichaceae, Musci) In Turkey, Adnan Erdağ
Turkish Journal of Botany
Fruiting specimens of Cheilothela chloropus (Brid.) Lindb. were collected and illustrated for the first time from the southwest of Turkey. A description and the distribution of the species are given to provide a contribution for further studies on Turkish mosses.
Floristic Records Of Lichens In Adana, Konya And Niğde Provinces, Şaban Güvenç
Floristic Records Of Lichens In Adana, Konya And Niğde Provinces, Şaban Güvenç
Turkish Journal of Botany
In this study, 50 taxa belonging to 25 genera were determined from the provinces of Adana, Konya and Niğde. Pertusaria velata (Turner) Nyl. is a new record for Turkey.
A Study On The Epiphytic Algae Of The Nilüfer Stream (Bursa), Şükran Dere, Di̇dem Karacaoğlu, Nurhayat Dalkiran
A Study On The Epiphytic Algae Of The Nilüfer Stream (Bursa), Şükran Dere, Di̇dem Karacaoğlu, Nurhayat Dalkiran
Turkish Journal of Botany
In our study, water samples were taken monthly between August 1997 and June 1998 from six selected stations in the region, from the source of the Nilüfer stream to the point where it joins the Marmara Sea. Temperature (Cº), pH, total dissolved substance (TDS), conductivity (EC), dissolved oxygen (DO) and biochemical oxygen demand (BOD5) values of the samples were measured. The epiphytic algal flora, and the population density and the abundance degree of species were determined. In the community of epiphytic algae, members of Bacillariophyta were dominant and Encyonema minutum (Hilse ex Rabh.) D.G.Mann, (Cymbellaceae), Achnanthidium minutissimum (Kütz.) Czarn. (Achnanthaceae), …
Flora Of Kazankaya Canyon (Yozgat-Çorum), Ahmet Duran, Ergi̇n Hamzaoğlu
Flora Of Kazankaya Canyon (Yozgat-Çorum), Ahmet Duran, Ergi̇n Hamzaoğlu
Turkish Journal of Botany
A floristic study of Kazankaya Canyon was carried out. Sixty families, 216 genera and 308 taxa were identified. A species new to science was found from the genus Scorzonera L. (Compositae). Fifty-two taxa (16.9%) are Irano-Turanian, 41 (13.3%) Mediterranean and 11 (3.6%) Euro-Siberian phytogeographic region elements. The remaining 195 (63.3%) taxa are multi-regional and 9 (2.9%) are not from a determined phytogeographic region. The life forms were determined according to Raunkiaer. The number of endemic taxa is 24 (7.8%). Four taxa show variations not previously reported in the literature. Thirty-four taxa are new floristic records for the square A5.
A New Record For The Flora Of Turkey: Physalis Philadelphica Lam. Var. Immaculata Waterf. (Solanaceae), Beki̇r Bükün, F. Nezi̇hi̇ Uygur, Si̇bel Uygur, Necaatti̇n Türkmen, Atabay Düzenli̇
A New Record For The Flora Of Turkey: Physalis Philadelphica Lam. Var. Immaculata Waterf. (Solanaceae), Beki̇r Bükün, F. Nezi̇hi̇ Uygur, Si̇bel Uygur, Necaatti̇n Türkmen, Atabay Düzenli̇
Turkish Journal of Botany
A new species, Physalis philadelphica Lam. var. immaculata Waterf. (Solanaceae) is reported for the first time for the flora of Turkey
Auxin (Indole-3-Acetic Acid), Gibberellic Acid (Ga_3), Abscisic Acid (Aba) And Cytokinin (Zeatin) Production By Some Species Of Mosses And Lichens, Nuray Ergün, Şaban Fati̇h Topcuoğlu, Ati̇lla Yildiz
Auxin (Indole-3-Acetic Acid), Gibberellic Acid (Ga_3), Abscisic Acid (Aba) And Cytokinin (Zeatin) Production By Some Species Of Mosses And Lichens, Nuray Ergün, Şaban Fati̇h Topcuoğlu, Ati̇lla Yildiz
Turkish Journal of Botany
In this study, the levels of endogenous free, bound and total auxin (Indole-3-acetic acid, IAA), gibberellic acid (GA_3), abscisic acid (ABA) and cytokinin (zeatin) were examined in some species of mosses and lichens. For determination of the levels of these plant growth regulators, spectrophotometry was used. Our findings show that the mosses and lichens used in this study produce the plant growth regulators IAA, GA_3, ABA and zeatin.
Seasonal Variations In The Biomass Of Macro-Algal Communities From The Gulf Of Antalya (North-Eastern Mediterranean), İsmai̇l İbrahi̇m Turna, Ö. Osman Ertan, Mario Cormaci, Giovanni Furnari
Seasonal Variations In The Biomass Of Macro-Algal Communities From The Gulf Of Antalya (North-Eastern Mediterranean), İsmai̇l İbrahi̇m Turna, Ö. Osman Ertan, Mario Cormaci, Giovanni Furnari
Turkish Journal of Botany
In this study, the seasonal variations in the macro-algal biomass in the Gulf of Antalya (north-eastern Mediterranean) were investigated. The seasonal variations of the macro-algal biomass were found to be related to the biology of the abundant species during less favourable seasons. These variations occurred usually as a result of a significant reduction in algal density [Padina pavonica (L.) J.V.Lamour., Dasycladus vermicularis (Scopoli) Krasser, Chondrophycus papillosus (C.Agardh) Garbay & Harper] or loss of major part of their thallus [Cystoseira spp., Liagora distenta (Mertens ex Roth) J.V.Lamour., Liagora viscida (Forssk.) C.Agardh]. The highest values of biomass were found to be in …
A Contribution To The Bryophyte Flora Of Western Turkey: The Bryophyte Flora Of Madran Mountain And The Çine Valley (Aydın, Turkey), Adnan Erdağ
Turkish Journal of Botany
This study presents a survey on the bryophyte flora of Madran mountain and Çine valley (Aydın, Turkey). One hundred and thirty-three bryophyte species belonging to 35 families and 69 genera were recorded from the area. Phaeoceros laevis (L.) Prosk. is the only member of the hornworts while liverworts are represented by 15 species. The remaining 117 taxa belong to the Bryopsida. Thirty-five species are new records for square C11 according to Henderson's (1961) grid system.
\Alpha -Difluoromethylornithine Inhibits The Growth Of Fungus Macrophomina Phaseoli, Narçin Palavan Ünsal, Ayşin Çotuk, Yeşi̇m Kalaç Martini
\Alpha -Difluoromethylornithine Inhibits The Growth Of Fungus Macrophomina Phaseoli, Narçin Palavan Ünsal, Ayşin Çotuk, Yeşi̇m Kalaç Martini
Turkish Journal of Botany
\alpha -Difluoromethylornithine (DFMO), a specific enzyme activated inhibitor of ornithine decarboxylase (ODC), significantly inhibited the mycelial growth of the fungus Macrophomina phaseoli (Tassi) Goidanich. Putrescine (Put), when added to the nutrient medium at a concentration of 0.25 mM, decreased the inhibitory effect of DFMO. These results suggest that polyamines (PAs) are essential for the growth of fungi and that DFMO is applicable to the alleviation or prevention of crop losses due to phytopathogenic fungi.
Two New Alchemilla L. (Rosaceae) Records For The Flora Of Turkey, Sema Hayirlioğlu Ayaz, Osman Beyazoğlu
Two New Alchemilla L. (Rosaceae) Records For The Flora Of Turkey, Sema Hayirlioğlu Ayaz, Osman Beyazoğlu
Turkish Journal of Botany
Two Alchemilla L. (Rosaceae) species from north-east Anatolia are described as new records for Turkey.
Plant Biotechnology I, Tissue Culture And Its Applications, Kemal Kazan
Plant Biotechnology I, Tissue Culture And Its Applications, Kemal Kazan
Turkish Journal of Botany
No abstract provided.
The Planktonic Diatoms Of Lake Çıldır (Ardahan-Turkey), Aydin Akbulut, Kazim Yildiz
The Planktonic Diatoms Of Lake Çıldır (Ardahan-Turkey), Aydin Akbulut, Kazim Yildiz
Turkish Journal of Botany
This paper describes the planktonic diatom flora of Lake Çıldır. Samples were collected monthly between May 1991 and September 1993 at three different stations. A total of 94 diatom taxa were identified. In the study period, the most dominant and abundant taxa were Cyclotella meneghiniana Kütz., Aulacoseria granulata (Ehrenb.) Simonsen, Melosira varians C.Agardh and Navicula Bory spp. The diatom flora of the lake is rich in species and varieties and is similar to that in other parts of Turkey.
Selected Chemical Constituents And Their Seasonal Variations In Flabellia Petiolata (Turra) Nizam. And Halimeda Tuna (Ellis & Sol.) J.V.Lamour. In The Gulf Of Antalya (North-Eastern Mediterranean), Şengül Bi̇lgi̇n, Ö. Osman Ertan
Selected Chemical Constituents And Their Seasonal Variations In Flabellia Petiolata (Turra) Nizam. And Halimeda Tuna (Ellis & Sol.) J.V.Lamour. In The Gulf Of Antalya (North-Eastern Mediterranean), Şengül Bi̇lgi̇n, Ö. Osman Ertan
Turkish Journal of Botany
Seasonal changes in selected chemical, ecological and morphological characteristics of Flabellia petiolata (Turra) Nizam. and Halimeda tuna (Ellis & Sol.) J.V.Lamour., which are commonly found in the Gulf of Antalya, were studied. Crude protein content of F. petiolata was found to be higher than that of H. tuna, whereas the crude fat contents of the two species were similar. On the other hand, compared to F. petiolata, H. tuna was rich in inorganic material. Both species were observed to be dense on a seasonal basis in the sampling area and they reached their maximum length during summer.
The Classification Of The Salvia L. (Labiatae) Species Distributed In West Anatolia According To Phenolic Compounds, Mahmure Naki̇poğlu
The Classification Of The Salvia L. (Labiatae) Species Distributed In West Anatolia According To Phenolic Compounds, Mahmure Naki̇poğlu
Turkish Journal of Botany
The seven species of Salvia L. growing naturally in West Anatolia (Salvia tomentosa Mill., Salvia fruticosa Mill., Salvia smyrnaea Boiss., Salvia argentea L., Salvia horminum L., Salvia verbenaca L., and Salvia virgata Jacq.) and a cultivated form (Salvia officinalis L.) were selected as the study materials. The phenolic compounds extracted from the leaves of the species were separated by two- dimensional thin-layer chromatography. On the basis of the distribution of phenolic spots in the species, the matching coefficients and the coefficient of similarity were calculated in order to determine the relationship between the species. As a result of the group …
A New Record For The Myxomycetes Flora Of Turkey: Comatricha Pulchella (C.Bab.) Rost. Var. Pulchella, C. Cem Ergül, Başaran Dülger
A New Record For The Myxomycetes Flora Of Turkey: Comatricha Pulchella (C.Bab.) Rost. Var. Pulchella, C. Cem Ergül, Başaran Dülger
Turkish Journal of Botany
Comatricha pulchella (C.Bab.) Rost. var. pulchella is recorded for the first time from Turkey.
The Effects Of Cold Treatment And Charcoal On The In Vitro Androgenesis Of Pepper (Capsicum Annuum L.), Dudu Özkum Çi̇ner, Ruki̇ye Tipirdamaz
The Effects Of Cold Treatment And Charcoal On The In Vitro Androgenesis Of Pepper (Capsicum Annuum L.), Dudu Özkum Çi̇ner, Ruki̇ye Tipirdamaz
Turkish Journal of Botany
The effects of cold-shock treatment of Capsicum annuum L. buds at 4°C for 48 or 96 h, and the addition of 0.25% activated charcoal on embryo formation were examined. Murashige and Skoog (MS) basal nutrient medium was supplemented with combinations of 4 mg l^{-1} naphthalene acetic acid (NAA) and 1 mg l^{-1} benzyladenine (BA) or 1 mg l^{-1} NAA and 4 mg l^{-1} BA, together with 0.8% (w/v) agar and 3% (w/v) sucrose. The highest number of embryos was obtained from the control anthers which were not subject to cold treatments and were cultured on MS medium containing 4 mg …
Pollen Studies On Some Species Of The Genus Convolvulus L. (Convolvulaceae) From Morocco, Yusuf Menemen, Stephen L. Jury
Pollen Studies On Some Species Of The Genus Convolvulus L. (Convolvulaceae) From Morocco, Yusuf Menemen, Stephen L. Jury
Turkish Journal of Botany
The pollen grains of nine species of Convolvulus L. from Morocco were studied using scanning electron microscopy and light microscopy. The species belong to three sections and four subsections: sections Convolvulus, Acanthocladi Boiss. and Inermes Boiss. and subsections Convolvulus, Spinescentes Boiss., Oleifolii Peter, and Diffusi Boiss. The pollen grains in the genus examined are all 3-zonocolpate. The pollen is suboblate, oblate-spheroidal, prolate-spheroidal and prolate. The nexine is thinner than the sexine and the tectum is distinctly perforated in all species. The pollen grains show variation within the genus in polar and equatorial axes, colpus length and shape. These variations sometimes …
Macrofungi Of Değirmenboğazı (Balıkesir), Fadi̇me Yilmaz, Mustafa Işiloğlu
Macrofungi Of Değirmenboğazı (Balıkesir), Fadi̇me Yilmaz, Mustafa Işiloğlu
Turkish Journal of Botany
The macrofungi collected during field trips from the Değirmenboğazı picnic area between 1998 and 2001 were investigated taxonomically. As a result of these field and laboratory studies, 54 taxa belonging to 19 families were identified. These species are presented as a list. Eleven of these taxa are new records to the Turkish Macromycota.
In Vitro Induction Of Crown Galls By Agrobacterium Tumefaciens Super Virulent Strain A281 (Ptibo 542) In Lentil (Lens Culinaris Medik.), Khalid Mahmood Khawar, Sebahatti̇n Özcan
In Vitro Induction Of Crown Galls By Agrobacterium Tumefaciens Super Virulent Strain A281 (Ptibo 542) In Lentil (Lens Culinaris Medik.), Khalid Mahmood Khawar, Sebahatti̇n Özcan
Turkish Journal of Botany
Twenty-one genotypes of lentils (Lens culinaris Medik.), obtained from different sources in Turkey and Pakistan, were included in the study. Seeds were germinated in MS medium for 6-10 days with a 16 h photoperiod at 24°C, from which leaf and stem explants were isolated for inoculation with super virulent strain A281 (pTiBo 542) :: pBI121.1 agropine/mannopine type of Agrobacterium tumefaciens. The binary plasmid pBI121.1 carried a GUS gene directed by CaMV 35S promoter in order to confirm transformation by GUS expression. Parameters recorded include percentage of tumour formation, tumour diameter, and tumour weight. Pul 11, Kışlık Yeşil 21, Akm 565 …
A New Record For The Algal Flora Of Turkey: Chaetomorpha Crassa (C.Ag.) Kütz. (Cladophoraceae, Chlorophyceae), Meral Apaydin Yağci, İsmai̇l İbrahi̇m Turna
A New Record For The Algal Flora Of Turkey: Chaetomorpha Crassa (C.Ag.) Kütz. (Cladophoraceae, Chlorophyceae), Meral Apaydin Yağci, İsmai̇l İbrahi̇m Turna
Turkish Journal of Botany
Chaetomorpha crassa (C.Ag.) Kütz. was sampled from the brackish water of Beymelek Lagoon (Antalya). During the seasons in which the water temperature is between 18.9°C (autumn) and 23.4°C (summer), the development density of this species in this area is considerably higher than at other times.
Additional Lichen Records From Rize Province, Kenan Yazici, Ali̇ Aslan
Additional Lichen Records From Rize Province, Kenan Yazici, Ali̇ Aslan
Turkish Journal of Botany
One hundred and fourteen species and 2 varieties, which belong to the 29 families in Ascomycotina, are reported from Çamlıhemşin county, Rize province. Seventy-eight species and 1 variety are new records for Rize.
Age Mediated Effects On The Alternative Respiratory Pathway In Leaves Of Rhodiola Rosea And Ajuga Reptans, Natalia V. Pystina, Roman A. Danilov
Age Mediated Effects On The Alternative Respiratory Pathway In Leaves Of Rhodiola Rosea And Ajuga Reptans, Natalia V. Pystina, Roman A. Danilov
Turkish Journal of Botany
The influence of aging processes on respiration and the ratio of respiratory pathways in the leaves of Rhodiola rosea L. and Ajuga reptans L. under natural conditions was investigated. Young leaves had a higher respiration rate and higher activity of the alternative respiratory pathway than did mature leaves. The capacity of the alternative respiratory pathway did not show significant differences between the young and mature leaves of R. rosea and increased in the mature leaves of A. reptans (from 60% up to 88%). This fact may be explained by the higher requirements of growing tissues for metabolites. In this case, …
Phytoplankton Species' Succession And Nutrients In The Southern Black Sea (Bay Of Sinop), Muhammet Türkoğlu, Tufan Koray
Phytoplankton Species' Succession And Nutrients In The Southern Black Sea (Bay Of Sinop), Muhammet Türkoğlu, Tufan Koray
Turkish Journal of Botany
The succession, annual cycle and diversity of phytoplankton species and seasonal changes in nutrients in the southern Black Sea (around Sinop peninsula) were investigated between August 1995 and July 1996. One species of Cyanophyceae, 83 taxa of Dinophyceae, 1 species of Prymnesiophyceae, 5 taxa of Dictyochophyceae, 88 taxa of Bacillariophyceae and 1 species of Euglenophyceae were identified. A list of phytoplankton species together with annual variations was prepared. Changes in community structure, density and diversity are discussed in relation to the physico-chemical features of the water column.
The Flora Of Upper Ceyhan Valley (Kahramanmaraş/Turkey), Adem Tatli, Hasan Akan, A. Zafer Tel, Cemi̇l Kara
The Flora Of Upper Ceyhan Valley (Kahramanmaraş/Turkey), Adem Tatli, Hasan Akan, A. Zafer Tel, Cemi̇l Kara
Turkish Journal of Botany
This investigation was carried out between 1994 and 1995 in order to determine the flora of Upper Ceyhan Valley. The research area is situated in the province of Kahramanmaraş and within C6 of the grid system. In the area, 412 taxa belonging to 68 families and 262 genera were determined. Twenty-eight (6.7%) taxa are endemics for Turkey. In the distribution of the taxa according to the floristic regions, Mediterranean elements with a rate of 23.5% are the most common. Irano-Turanian elements with a rate of 17.2% and Euro-Siberian elements with a rate of 3.4% were found. The families which have …
New Records For The Myxomycetes Flora Of Turkey, C. Cem Ergül, Başaran Dülger
New Records For The Myxomycetes Flora Of Turkey, C. Cem Ergül, Başaran Dülger
Turkish Journal of Botany
Thirty myxomycetes species are new records for Turkey. Among these species, Craterium minutum (Leers) Fries, Dianema repens G.Lister & Cran., Lindbladia tubulina Fries and Tubifera ferrruginosa (Batsch) J.F.Gmel. are also new genus record taxa for the myxomycetes flora of Turkey.